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Two moles of an ideal gas expand spontan...

Two moles of an ideal gas expand spontaneously into a vacuum. The work done is

A

Zero

B

2 J

C

4 J

D

8 J

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The correct Answer is:
A
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ALLEN-THERMODYNAMICS -EXERCISE -2
  1. The work done in ergs for the reversible expansion of one mole of an i...

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  2. Two liters of N(2) at 0^(@)C and 5 atm pressure is expanded isothermal...

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  3. Two moles of an ideal gas expand spontaneously into a vacuum. The work...

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  4. One mole of a gas occupying 3dm^(3) expands against a constant externa...

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  5. For which reaction from the following, DeltaS will be maximum?

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  6. An adiabatic process is one in which :-

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  7. Entropy means

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  8. Delta S for the reaction : MgCO(3) rightarrow MgO(s) + CO(2)(g)

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  9. Change in entropy is negative for

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  10. In which reaction Delta S is positive :-

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  11. When the egg is hard boiled, there

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  12. If S^@" for "H(2), Cl2 and HCl are 0.13, 0.22 and 0.19" kJ K"^(-1)"mol...

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  13. Which has the least entropy :

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  14. When two gases are mixed the entropy :-

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  15. The enthalpy of vaporization for water is 186.5 KJ mol^(−1) ,the entro...

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  16. Calculate the enthalpy of vaporisation per mole for ethanol. Given Del...

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  17. If 900J//g of heat is exchanged at boiling point of water then water...

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  18. Calculate the enthalpy of vaporisation per mole for ethanol. Given Del...

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  19. 5 mole of an ideal gas expands reversibly from a volume of 8" dm"^(3)"...

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  20. In a spontaneous irreversible process the total entropy of the system ...

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